标题:Doubling the photocatalytic performance of SnO2 by carbon coating mixed-phase particles
作者:Li, Qingbo; Zhao, Hongkai; Sun, Honggang; Zhao, Xian; Fan, Weiliu
作者机构:[Li, Qingbo; Zhao, Hongkai; Zhao, Xian] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China.; [Sun, Honggang] Shandong 更多
通讯作者:Li, QB;Zhao, X;Fan, WL;Li, Qingbo
通讯作者地址:[Li, QB; Zhao, X]Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China;[Fan, WL]Shandong Univ, Sch Chem & Chem Engn, Jinan 更多
来源:RSC ADVANCES
出版年:2018
卷:8
期:53
页码:30366-30373
DOI:10.1039/c8ra03794a
摘要:In this work, carbon-coated mixed-phase (tetragonal/orthorhombic) SnO2 photocatalysts were successfully fabricated with a chemical precipitation method, followed by a facile hydrothermal process. This material exhibits the highest activity during photocatalytic methyl orange and phenol degradation, and the degradation rate constant is almost 3 times than that of pure tetragonal SnO2. The enhancement of photocatalytic activity could be mainly attributed to the synergistic effect among tetragonal SnO2, orthorhombic SnO2 and carbon (serves as a charge transfer mediator), which was found to lead to more efficient separation of photogenerated electron-hole pairs. Phase junctions in mixed-phase SnO2 were beneficial to the separation of photogenerated electrons and holes and carbon further facilitated the charge transfer between tetragonal and orthorhombic SnO2 nanoparticles. This study may provide a method for other mixed-phase semiconductors with promising performance for potential applications in environmental protection.
收录类别:EI;SCOPUS;SCIE
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85052741543&doi=10.1039%2fc8ra03794a&partnerID=40&md5=7c40de8a1ae6f794268c37d37eb06356
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